JP6918963B2 - Conductive member and touch panel - Google Patents

Description

The present invention relates to a conductive member having a detection electrode composed of a thin metal wire and a touch panel provided with the conductive member.

In recent years, it has been used in combination with a display device such as a liquid crystal display device in various electronic devices such as tablet computers and mobile information devices such as smartphones, and is electronic by touching or bringing a finger, a stylus pen, or the like into contact with or close to the screen. Touch panels that perform input operations on devices are becoming widespread.

The touch panel usually has a conductive member on which a plurality of detection electrodes and the like for detecting a touch operation with a finger and a stylus pen or the like are formed. The detection electrode is often formed of a transparent conductive oxide such as ITO (Indium Tin Oxide), but is also formed of a metal other than the transparent conductive oxide. The metal has advantages such as easier patterning, excellent flexibility, and a lower resistance value than the transparent conductive oxide. A touch panel having a conductive member made of a thin metal wire can reduce the resistance value and the parasitic capacitance value as compared with a conventional touch panel made of a transparent conductive oxide, and therefore has a detection sensitivity to a touch operation. Can be improved and is attracting attention.

For example, Patent Document 1 discloses a conductive sheet for a touch panel having a plurality of mesh-shaped detection electrodes (conductive patterns) made of fine metal wires. In the conductive sheet for a touch panel disclosed in Patent Document 1, a plurality of dummy electrodes (non-conductive patterns) electrically insulated from the plurality of detection electrodes are formed between the plurality of detection electrodes (conductive patterns). ing. Further, the plurality of detection electrodes (conductive pattern) and the plurality of dummy electrodes (non-conductive pattern) have a mesh shape composed of a plurality of diamond-shaped mesh cells, and the plurality of dummy electrodes (non-conductive pattern) have a mesh shape. The mesh cell has a broken portion in which the thin metal wire is discontinuous.

As described above, a conductive sheet for a touch panel having a plurality of detection electrodes (conductive pattern) and a plurality of dummy electrodes (non-conductive pattern) and further having a broken portion in the plurality of dummy electrodes (non-conductive pattern) is common. In many cases, it has a configuration as shown in FIGS. 11 to 13. For example, the first electrode layer 1A as shown in FIG. 11 and the second electrode layer 1B as shown in FIG. 12 are formed via a transparent insulating member (not shown). As shown in FIG. 11, a detection electrode 2A made of a thin metal wire 6 and extending along a second direction D2 is formed in the first electrode layer 1A. Further, in order to prevent the gap between the plurality of detection electrodes 2A from being conspicuously visually recognized, a plurality of dummy electrodes 3A that do not contribute to the detection of the touch operation are formed between the plurality of detection electrodes 2A. Further, in the first electrode layer 1A, the plurality of detection electrodes 2A and the plurality of dummy electrodes 3A are composed of a plurality of diamond-shaped mesh cells 4, and are included in the sides of the respective mesh cells 4 constituting the plurality of dummy electrodes 3A. A disconnection portion 5A is provided at the point where the thin metal wire 6 is discontinuous.

Further, as shown in FIG. 12, a detection electrode 2B made of a thin metal wire 6 and extending along the first direction D1 is formed on the second electrode layer 1B. Further, similarly to the plurality of dummy electrodes 3A of the first electrode layer 1A, a plurality of dummy electrodes 3B are formed between the plurality of detection electrodes 2B. In the second electrode layer 1B, the plurality of detection electrodes 2B and the plurality of dummy electrodes B are composed of a plurality of diamond-shaped mesh cells 4, and are located at the midpoints of the sides of the respective mesh cells 4 constituting the plurality of dummy electrodes 3B. , A disconnection portion 5B is provided so that the thin metal wire 6 is discontinuous.

International Publication No. 2013/09472

However, in the dummy electrodes 3A and 3B shown as examples in FIGS. 11 and 12, since the disconnection portions 5A and 5B are provided at the midpoints of the sides of the plurality of mesh cells 4, respectively, as shown in FIG. When the conductive member is viewed from the visual side in a state where the 1-electrode layer 1A and the 2nd electrode layer 1B are overlapped with each other, the disconnection portions 5A of the plurality of dummy electrodes 3A formed on the 1st electrode layer 1A , The disconnection portions 5B of the plurality of dummy electrodes 3B formed on the second electrode layer 1B are arranged at the same positions as each other. As a result, a plurality of locations where the disconnection portions 5A and 5B overlap each other are conspicuously visually recognized. Therefore, when a touch panel conductive sheet having a configuration as shown in FIGS. 11 to 13 is used for the touch panel, the visibility is improved. It could drop.

The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a conductive member capable of improving visibility and a touch panel provided with the conductive member.

The first conductive member according to the present invention is a conductive member in which a first electrode layer and a second electrode layer are arranged via a transparent insulating member, and the first electrode layers are spaced apart in a first direction. A plurality of first detection electrodes arranged in parallel with each other and extending in a second direction orthogonal to the first direction, and a plurality of first detection electrodes arranged between the plurality of first detection electrodes and insulated from the plurality of first detection electrodes. The second electrode layer has a plurality of first dummy electrodes, and the second electrode layer is arranged in parallel at intervals in the second direction and extends in the first direction, respectively, and a plurality of second detection electrodes. The first detection electrode, the first dummy electrode, the second detection electrode, and the second dummy electrode have a plurality of second dummy electrodes arranged between the detection electrodes and insulated from the plurality of second detection electrodes. Each mesh cell is composed of a plurality of mesh cells formed of fine metal wires, and the mesh cell constituting the first dummy electrode has a broken portion in which the fine metal wires are discontinuous, and the mesh cell constituting the second dummy electrode is , The arrangement of the broken part of the mesh cell of the first dummy electrode in the region where the first dummy electrode and the second detection electrode overlap each other has a broken part in which the thin metal wire is discontinuous, and the first dummy electrode and the second dummy are arranged. Unlike the arrangement of the broken part of the mesh cell of the first dummy electrode in the region where the electrodes overlap, the arrangement of the broken part of the mesh cell of the second dummy electrode in the region where the second dummy electrode and the first detection electrode overlap is the first. Unlike the arrangement of the broken wire portion of the mesh cell of the second dummy electrode in the region where the first dummy electrode and the second dummy electrode overlap, the first in the region where the first dummy electrode and the second detection electrode overlap each other in a plan view. A thin metal wire of the second detection electrode is arranged in the broken portion of the dummy electrode, and in the region where the second dummy electrode and the first detection electrode overlap each other, the broken portion of the second dummy electrode is the broken portion of the first detection electrode. In the region where the thin metal wire is arranged and the first dummy electrode and the second dummy electrode overlap each other, a continuous thin metal wire that is not a broken portion of the first dummy electrode and a continuous thin metal wire that is not a broken portion of the second dummy electrode First, there is at least one point where the first dummy electrode and the second dummy electrode have continuous thin metal wires which are not the other breaks in one of the breaks of the first dummy electrode and the second dummy electrode. It is characterized in that a dummy electrode and a second dummy electrode are formed.

In the region where the first dummy electrode and the second dummy electrode overlap, a thin metal wire of the second dummy electrode is arranged in the broken portion of the first dummy electrode, and the first dummy is placed in the broken portion of the second dummy electrode. It is preferable that the thin metal wire of the electrode is arranged.
Alternatively, in the region where the first dummy electrode and the second dummy electrode overlap, the broken portion of the first dummy electrode and the broken portion of the second dummy electrode are the metal wire of the first dummy electrode and the metal of the second dummy electrode, respectively. It can be placed at a position other than the position where the thin lines intersect with each other.

The length of the broken portion of the first dummy electrode and the length of the broken portion of the second dummy electrode in the region where the first dummy electrode and the second dummy electrode overlap are the regions where the first dummy electrode and the second detection electrode overlap. It is preferable that the length of the broken portion of the first dummy electrode is shorter than the length of the broken portion of the second dummy electrode in the region where the second dummy electrode and the first detection electrode overlap.

The line width of the thin metal wire is 0.5 μm or more and 10 μm or less.
The length of the broken portion of the first dummy electrode and the length of the broken portion of the second dummy electrode are preferably 1 μm or more and 30 μm or less.

The plurality of first detection electrodes and the plurality of first dummy electrodes form a first mesh pattern composed of a plurality of first mesh cells, and the plurality of second detection electrodes and the plurality of second dummy electrodes include a plurality of second dummy electrodes. By forming a second mesh pattern composed of the second mesh cells and overlapping the first electrode layer and the second electrode layer with each other, a plurality of first detection electrodes, a plurality of first dummy electrodes, and a plurality of second electrodes are formed. The detection electrode and the plurality of second dummy electrodes can be combined with each other to form a third mesh pattern composed of a plurality of third mesh cells.

Further, each of the third mesh cells can have a quadrangular shape.
Further, the quadrangle is preferably a rhombus.

The first mesh cell and the second mesh cell have the same shape as each other, the first mesh pattern has the first mesh pitch, and the second mesh pattern has the same second mesh as the first mesh pitch. It has a pitch, and the third mesh cell can have a third mesh pitch, which is 1/2 of the first mesh pitch.

The touch panel according to the present invention includes the above-mentioned conductive member.

The second conductive member according to the present invention is a conductive member in which the first electrode layer and the second electrode layer are arranged via the transparent insulating member, and the first electrode layer is in the first direction. A plurality of first detection electrodes arranged in parallel at intervals and extending in a second direction orthogonal to the first direction, and a plurality of first detection electrodes arranged between the plurality of first detection electrodes and insulated from the plurality of first detection electrodes. The second electrode layer has a plurality of first dummy electrodes, which are arranged in parallel at intervals in the second direction and extend in the first direction, respectively, and a plurality of second detection electrodes. It has a plurality of second dummy electrodes arranged between the two detection electrodes and insulated from the plurality of second detection electrodes, and the first detection electrode, the first dummy electrode, the second detection electrode, and the second dummy electrode are Each mesh cell is composed of a plurality of mesh cells formed of fine metal wires, and the mesh cell constituting the first dummy electrode has a broken portion in which the fine metal wires are discontinuous and constitutes the second dummy electrode. Has a broken portion in which the thin metal wire is discontinuous, and the arrangement of the broken portion of the mesh cell of the first dummy electrode in the region where the first dummy electrode and the second detection electrode overlap is the first dummy electrode and the second. Unlike the arrangement of the broken part of the mesh cell of the first dummy electrode in the region where the dummy electrode overlaps, the arrangement of the broken part of the mesh cell of the second dummy electrode in the region where the second dummy electrode and the first detection electrode overlap is different. This is different from the arrangement of the broken wire portion of the mesh cell of the second dummy electrode in the region where the first dummy electrode and the second dummy electrode overlap.

According to the present invention, the mesh cell constituting the first dummy electrode and the mesh cell constituting the second dummy electrode each have a broken portion in which the thin metal wire is discontinuous, and the first dummy electrode and the second detection are performed. In the region where the electrodes overlap, the fine metal wire of the second detection electrode is arranged in the disconnection portion of the first dummy electrode, and in the region where the second dummy electrode and the first detection electrode overlap, the disconnection portion of the second dummy electrode. The thin metal wire of the first detection electrode is arranged in the above, and in the region where the first dummy electrode and the second dummy electrode overlap, the continuous thin metal wire and the broken portion of the second dummy electrode, which are not the broken portion of the first dummy electrode, are formed. At least one point where continuous thin metal wires that are not continuous intersect and overlap with each other, or a point where a continuous thin metal wire that is not a broken portion of the other is arranged in one of the first dummy electrode and the second dummy electrode. Since the first dummy electrode and the second dummy electrode are formed so as to exist, the broken portion of the first dummy electrode and the broken portion of the second dummy electrode do not overlap with each other, and the visibility can be improved. ..

It is a partial cross-sectional view of the touch panel which concerns on Embodiment 1 of this invention. It is a top view of the touch panel which concerns on Embodiment 1 of this invention. It is a partially enlarged plan view of the 1st electrode layer in Embodiment 1 of this invention. It is a partially enlarged plan view of the 2nd electrode layer in Embodiment 1 of this invention. It is a partially enlarged plan view of the conductive member which concerns on Embodiment 1 of this invention. It is a partial cross-sectional view of the touch panel which concerns on the modification of Embodiment 1 of this invention. It is a partial cross-sectional view of the touch panel which concerns on another modification of Embodiment 1 of this invention. It is a partially enlarged plan view of the 1st electrode layer in Embodiment 2 of this invention. It is a partially enlarged plan view of the 2nd electrode layer in Embodiment 2 of this invention. It is a partially enlarged plan view of the conductive member which concerns on Embodiment 2 of this invention. It is a partially enlarged sectional view of the 1st electrode layer in the conductive member of a conventional example. It is a partially enlarged sectional view of the 2nd electrode layer in the conductive member of a conventional example. It is a partially enlarged sectional view of the conductive member of a conventional example.

Hereinafter, the conductive member according to the present invention will be described in detail based on the preferred embodiment shown in the accompanying drawings.
In the following, the notation "~" indicating the numerical range shall include the numerical values described on both sides. For example, "s is a numerical value t1 to a numerical value t2" means that the range of s is a range including the numerical values t1 and the numerical value t2, and is t1 ≦ s ≦ t2 in mathematical symbols.
Angles, including "orthogonal" and "parallel", shall include error ranges generally acceptable in the art, unless otherwise stated.
“Transparent” means that the light transmittance is at least 40% or more, preferably 75% or more, more preferably 80% or more, and even more preferably in the visible light wavelength range of a wavelength of 400 to 800 nm. That's over 90%. The light transmittance is measured by using "Plastic--How to determine the total light transmittance and the total light reflectance" specified in JIS K 7375: 2008.

Embodiment 1
FIG. 1 shows the configuration of the touch panel 11 according to the embodiment of the present invention.
The touch panel 11 has a front surface 11A and a back surface 11B, and is used in a state where a display device such as a liquid crystal display device (not shown) is arranged on the back surface 11B side. The surface 11A of the touch panel 11 is a touch surface for detecting a touch operation, and is a visual side for an operator of the touch panel 11 to observe an image displayed on the display device through the touch panel 11.
The touch panel 11 has a transparent insulating cover panel 12 arranged on the surface 11A side, and the conductive member 13 is joined by a transparent adhesive layer 14 on the surface of the cover panel 12 on the side opposite to the surface 11A. There is.

The conductive member 13 has a transparent insulating substrate 15 which is a transparent insulating member, and the transparent insulating substrate 15 has a first surface 15A facing the surface 11A side of the touch panel 11 and a side opposite to the first surface 15A. It has a second surface 15B that is directed. The first electrode layer 16A is formed on the first surface 15A, and the second electrode layer 16B is formed on the second surface 15B of the transparent insulating substrate 15. As shown in FIG. 1, a transparent protective layer 17A covering the first electrode layer 16A and a transparent protective layer 17B covering the second electrode layer 16B may be formed.

FIG. 2 shows a plan view of the touch panel 11 as viewed from the viewing side in a plan view. FIG. 1 is a cross-sectional view taken along the line AA in FIG. Further, in FIG. 2, the cover panel 12, the adhesive layer 14, the protective layer 17A, and the protective layer 17B are omitted for the sake of explanation. As shown in FIG. 2, the conductive member 13 of the touch panel 11 is divided into an input area S1 for detecting a touch operation by a finger and a stylus pen, and an outer area S2 located outside the input area S1. Has been done.

A plurality of first electrode layers 16A formed on the first surface 15A of the transparent insulating substrate 15 are arranged in parallel at intervals in the first direction D1 and extend along the second direction D2 orthogonal to the first direction D1. It has a plurality of first dummy electrodes DE1 arranged between the first detection electrode SE1 and the plurality of first detection electrodes SE1. The first dummy electrode DE1 is used to prevent the pattern of the first detection electrode SE1 from being visually recognized because the gap between the plurality of first detection electrodes SE1 is conspicuous when the touch panel 11 is viewed from the viewing side. Have been placed.

Further, the first electrode layer 16A includes a plurality of first electrode pads 21 connected to one end of each of the plurality of first detection electrodes SE1, and a plurality of first peripherals connected to each of the plurality of first electrode pads 21. Further, the wiring 22 and a plurality of first external connection terminals 23 connected to each of the plurality of first peripheral wirings 22 and arranged at the edge of the first surface 15A of the transparent insulating substrate 15 are provided.
Here, even if the first detection electrode SE1 is provided with the same electrode pad as the first electrode pad 21 at the end where the first peripheral wiring 22 is not electrically connected via the first electrode pad 21. good. This electrode pad can be used as a terminal for connecting the first peripheral wiring 22 and also as a terminal for checking the continuity of the first detection electrode SE1.

The second electrode layer 16B formed on the second surface 15B of the transparent insulating substrate 15 is arranged in parallel with the second direction D2 at intervals and extends along the first direction D1 with a plurality of second detection electrodes SE2. , It has a plurality of second dummy electrodes DE2 arranged between the plurality of second detection electrodes SE2, respectively. The second dummy electrode DE2 is used to prevent the pattern of the second detection electrode SE2 from being visually recognized because the gap between the plurality of second detection electrodes SE2 is conspicuous when the touch panel 11 is viewed from the viewing side. Have been placed.
As shown in FIG. 2, the plurality of second detection electrodes SE2 and the plurality of second dummy electrodes DE2 have the plurality of first detection electrodes SE1 and the plurality of first detection electrodes SE1 in the input region S1 when viewed from the visual side. It is arranged so as to intersect and overlap the dummy electrode DE1.

Further, the second electrode layer 16B includes a plurality of second electrode pads 31 connected to one end of each of the plurality of second detection electrodes SE2, and a plurality of second peripherals connected to each of the plurality of second electrode pads 31. Further, the wiring 32 and a plurality of second external connection terminals 33 connected to each of the plurality of second peripheral wirings 32 and arranged at the edge of the second surface 15B of the transparent insulating substrate 15 are provided.
Here, even if the second detection electrode SE2 is provided with the same electrode pad as the second electrode pad 31 at the end where the second peripheral wiring 32 is not electrically connected via the second electrode pad 31. good. This electrode pad can be used as a terminal for connecting the first peripheral wiring 22 and also as a terminal for checking the continuity of the second detection electrode SE2.

FIG. 3 shows a partial plan view of only the first electrode layer 16A as viewed from the visual side in a plan view in a region R0 including a portion where the first detection electrode SE1 and the second detection electrode SE2 overlap.
As shown in FIG. 3, the first dummy electrode DE1 is formed adjacent to the first detection electrode SE1.

As shown in FIG. 3, the first detection electrode SE1 is a mesh-shaped electrode composed of a thin metal wire MW1 and having a diamond-shaped first mesh cell C1 as a repeating unit.
Further, the first dummy electrode DE1 has a mesh shape which is composed of a thin metal wire MW1 and has a diamond-shaped first mesh cell C1 as a repeating unit, like the first detection electrode SE1, but is a first detection electrode. The gap GA1 is spaced apart from the SE1 so as to be electrically insulated, and electricity is also applied to the plurality of first electrode pads 21, the plurality of first peripheral wirings 22, and the plurality of first external connection terminals 23. Since it is arranged so as to be insulated, it does not contribute to the detection of touch operation.

For the sake of explanation, in FIG. 3, the thin metal wire MW1 of the first detection electrode SE1 is drawn with a relatively thick solid line, and the thin metal wire MW1 of the first dummy electrode DE1 is drawn with a relatively thin solid line. However, the thin metal wire MW1 of the first detection electrode SE1 and the thin metal wire MW1 of the first dummy electrode DE1 can actually be the thin metal wire MW1 having the same line width as each other.

Further, each of the plurality of first mesh cells C1 forming the mesh shape of the first dummy electrode DE1 has a broken portion GB1 in which the thin metal wire MW1 is discontinuous.
As shown in FIG. 2, the first dummy electrode DE1 overlaps with the second detection electrode SE2 and the second dummy electrode DE2, but as shown in FIG. 3, the first dummy electrode DE1 and the second detection electrode SE2 overlap each other. In the overlapping portion T1, the disconnection portion GB1 is formed at the midpoints of all the sides constituting the first mesh cell C1. Further, in the portion T2 where the first dummy electrode DE1 and the second dummy electrode DE2 overlap each other, a disconnection portion GB1 is formed at the midpoint of a part of the sides constituting the first mesh cell C1. The disconnection portion GB1 is not formed on the side. That is, the arrangement of the plurality of disconnection portions GB1 formed on the first dummy electrode DE1 in the portion T1 where the first dummy electrode DE1 and the second detection electrode SE2 overlap each other, and the first dummy electrode DE1 and the second dummy electrode DE1 and the second. The arrangement of the plurality of disconnection portions GB1 formed on the first dummy electrode DE1 in the portion T2 where the dummy electrodes DE2 overlap each other is different from each other. Note that the arrangement of the disconnection portions is different, which means that the number of the disconnection portions provided in one mesh cell is different, or the positions of the disconnection portions provided on the sides of the mesh cell are different.

Here, in order to prevent the gap GA1 from being conspicuously visible while ensuring the electrical insulation between the plurality of first dummy electrodes DE1 and the plurality of first detection electrodes SE1, the plurality of first dummy electrodes The length of the gap GA1 between the DE1 and the plurality of first detection electrodes SE1 is preferably 0.5 μm to 50 μm, and more preferably 5 μm to 30 μm. The length of the broken portion GB1 of the plurality of first dummy electrodes DE1 is preferably 0.5 μm to 50 μm, more preferably 1 μm to 30 μm, and further preferably 5 μm to 20 μm.

As described above, each of the first detection electrode SE1 and the first dummy electrode DE1 has the first mesh cell C1, and the first mesh cell is formed by the plurality of first detection electrodes SE1 and the first dummy electrode DE1. A first mesh pattern MP1 having C1 as a repeating unit and having a first mesh pitch P1 is formed. Here, the first mesh pitch P1 is defined by the distance between the centers of gravity of adjacent first mesh cells C1 in the first direction D1.

FIG. 4 shows a partial plan view of only the second electrode layer 16B in the region R0 as viewed from the viewing side in a plan view.
As shown in FIG. 4, a second dummy electrode DE2 is formed adjacent to the second detection electrode SE2. The second dummy electrode DE2 is arranged to prevent the pattern of the second detection electrode SE2 from being visually recognized because the gap between the plurality of second detection electrodes SE2 is conspicuous when the touch panel 11 is viewed from the viewing side. ing.

As shown in FIG. 4, the second detection electrode SE2 is a mesh-shaped electrode composed of a thin metal wire MW2 and having a diamond-shaped second mesh cell C2 as a repeating unit.
Further, the second dummy electrode DE2 has a mesh shape which is composed of a thin metal wire MW2 and has a diamond-shaped second mesh cell C2 as a repeating unit, like the second detection electrode SE2, but is a second detection electrode. The gap GA2 is arranged so as to be electrically insulated from the SE2, and electricity is also applied to the plurality of second electrode pads 31, the plurality of second peripheral wirings 32, and the plurality of second external connection terminals 33. Since it is arranged so as to be insulated, it does not contribute to the detection of touch operation.

For the sake of explanation, in FIG. 4, the thin metal wire MW2 of the second detection electrode SE2 is drawn with a relatively thick dotted line, and the thin metal wire MW2 of the second dummy electrode DE2 is drawn with a relatively thin dotted line. However, the thin metal wire MW2 of the second detection electrode SE2 and the thin metal wire MW2 of the second dummy electrode DE2 are actually composed of continuous thin metal wire MW2, and are made of thin metal wire MW2 having the same line width as each other. be able to.

Further, each of the plurality of second mesh cells C2 forming the mesh shape of the second dummy electrode DE2 has a disconnection portion GB2 in which the thin metal wire MW2 is discontinuous.
As shown in FIG. 2, the second dummy electrode DE2 overlaps the first detection electrode SE1 and the first dummy electrode DE1, but as shown in FIG. 4, the second dummy electrode DE2 and the first detection electrode SE1 overlap each other. In the overlapping portion T3, the disconnection portion GB2 is formed at the midpoints of all the sides constituting the second mesh cell C2. Further, in the portion T4 where the second dummy electrode DE2 and the first dummy electrode DE1 overlap each other, a disconnection portion GB2 is formed at the midpoint of a part of the sides constituting the second mesh cell C2, and other parts are formed. The disconnection portion GB2 is not formed on the side. That is, the arrangement of the plurality of disconnection portions GB2 formed on the second dummy electrode DE2 in the portion T3 where the second dummy electrode DE2 and the first detection electrode SE1 overlap each other, and the second dummy electrode DE2 and the first The arrangement of the plurality of disconnection portions GB2 formed on the second dummy electrode DE2 in the portion T4 where the dummy electrode DE1 and the dummy electrode DE1 overlap each other is different from each other. Note that the arrangement of the disconnection portions is different, which means that the number of the disconnection portions provided in one mesh cell is different, or the positions of the disconnection portions provided on the sides of the mesh cell are different.

Here, when the first dummy electrode DE1 and the second dummy electrode DE2 overlap each other, the disconnection portion GB1 of the first dummy electrode DE1 and the disconnection portion GB2 of the second dummy electrode DE2 do not overlap each other. The disconnection portion GB2 of the 2 dummy electrode DE2 is formed at a position different from the position of the disconnection portion GB1 of the first dummy electrode DE1.

Further, in order to prevent the gap GA2 from being conspicuously visible while ensuring the electrical insulation between the plurality of second dummy electrodes DE2 and the plurality of second detection electrodes SE2, the plurality of second dummy electrodes The length of the gap GA2 between the DE2 and the plurality of second detection electrodes SE2 is preferably 0.5 μm to 50 μm, and more preferably 5 μm to 30 μm. The length of the disconnection portion GB2 of the plurality of second dummy electrodes DE2 is preferably 0.5 μm to 50 μm, more preferably 1 μm to 30 μm, and further preferably 5 μm to 20 μm.

As described above, both the second detection electrode SE2 and the second dummy electrode DE2 have the second mesh cell C2, and the second detection electrode SE2 and the second dummy electrode DE2 form the second mesh cell. A second mesh pattern MP2 having C2 as a repeating unit and having a second mesh pitch P2 is formed. Here, the second mesh pitch P2 is defined by the distance between the centers of gravity of the second mesh cells C2 adjacent to each other in the first direction D1.

FIG. 5 shows a partial plan view of the conductive member 13 as viewed from the visual side in a plan view in the region R0. As shown in FIG. 5, in the conductive member 13, the plurality of first detection electrodes SE1 and the plurality of first dummy electrodes DE1 and the plurality of second detection electrodes SE2 and the plurality of second dummy electrodes DE2 are combined with each other. That is, the first mesh pattern MP1 and the second mesh pattern MP2 are combined with each other to form a third mesh pattern MP3 composed of a plurality of third mesh cells C3.

Here, as an example of the first embodiment, in FIG. 5, the first mesh cell C1 and the second mesh cell C2 have the same rhombus, and the second mesh pattern MP2 is the first mesh pattern MP1 to the first mesh. It is arranged at a position shifted by 1/2 of the pitch P1. In this case, the third mesh pitch P3 of the third mesh pattern MP3 has a value of 1/2 of the first mesh pitch P1 of the first mesh pattern MP1 and the second mesh pitch P2 of the second mesh pattern MP2. The third mesh cell C3 also has a rhombic shape.

In this way, by superimposing the first electrode layer 16A and the second electrode layer 16B on each other to form the third mesh pattern MP3 having the third mesh pitch P3, the parasitic capacitance at the electrode intersection is reduced and the parasitic capacitance is reduced. It is possible to prevent the thin metal wire contained in the first electrode layer 16A and the fine metal wire contained in the second electrode layer 16B from being conspicuously visually recognized.

Further, as shown in FIG. 5, the region R0 is changed to the first region R1 and the second region by the combination of the first detection electrode SE1, the first dummy electrode DE1, the second detection electrode SE2, and the second dummy electrode DE2. It can be divided into four types of regions, R2, a third region R3, and a fourth region R4. Here, the first region R1 is a region where the first detection electrode SE1 and the second detection electrode SE2 overlap each other, and the second region R2 is a region where the first detection electrode SE1 and the second dummy electrode DE2 overlap each other. The third region R3 is a region where the first dummy electrode DE1 and the second detection electrode SE2 overlap each other, and the fourth region R4 is a region where the first dummy electrode DE1 and the second dummy electrode DE2 overlap each other. ..
The second region R2 is the portion T3 shown in FIG. 4, the third region R3 is the portion T1 shown in FIG. 3, and the fourth region R4 is the portion T2 shown in FIG. Corresponds to each of the portions T4 shown in 4.

When the conductive member 13 is viewed from the visual side, the thin metal wire constituting the first detection electrode SE1 and the thin metal wire constituting the second detection electrode SE2 intersect and overlap each other in the first region R1.
Further, in the second region R2, the disconnection portion GB2 of the second dummy electrode DE2 is formed at the midpoint of the side of the second mesh cell C2, and is located at a position intersecting the thin metal wire constituting the first detection electrode SE1. Have been placed.
Further, in the third region R3, the disconnection portion GB1 of the first dummy electrode DE1 is formed at the midpoint of the side of the first mesh cell C1 and is located at a position intersecting the thin metal wire constituting the second detection electrode SE2. Have been placed.

In the fourth region R4, in the disconnection portion GB1 of the first dummy electrode DE1 and the disconnection portion GB2 of the second dummy electrode DE2, the metal wire of the first dummy electrode DE1 and the metal wire of the second dummy electrode DE2 are respectively arranged with each other. It is located at the intersection. At this time, at the position where the disconnection portion GB1 of the first dummy electrode DE1 is arranged, the thin metal wire constituting the second dummy electrode DE2 is arranged instead of the disconnection portion GB2 of the second dummy electrode DE2, and the second dummy electrode At the position where the disconnection portion GB2 of the DE2 is arranged, the thin metal wire constituting the first dummy electrode DE1 is arranged instead of the disconnection portion GB1 of the first dummy electrode DE1. Therefore, the plurality of disconnection portions GB1 of the first dummy electrode DE1 and the plurality of disconnection portions GB2 of the second dummy electrode DE2 do not overlap each other.

On the other hand, in the conventional conductive member having the configuration as shown in FIG. 13, the plurality of disconnection portions 5A of the first dummy electrode 3A and the plurality of disconnection portions 5B of the second dummy electrode 3B overlap each other, and this portion overlaps with each other. It was noticeably visible. However, in the conductive member 13 of the first embodiment of the present invention, the disconnection portion GB1 of the first dummy electrode DE1 and the disconnection portion GB2 of the second dummy electrode DE2 do not overlap each other. It does not have a part that is conspicuously visible due to overlapping. Thereby, when the conductive member 13 is used for the touch panel 11, the visibility can be improved.
Here, "improving visibility" means a disconnection formed in a thin metal wire included in the first electrode layer 16A and the second electrode layer 16B when an image of a display device (not shown) is visually recognized through the conductive member 13. It means that the image is visually recognized more clearly without being aware of the existence of the part.

In the first embodiment of the present invention, in the fourth region R4, all the broken parts GB1 of the first dummy electrode DE1 overlap with the continuous thin metal wire which is not the broken part GB2 of the second dummy electrode DE2, and the first 2 All the broken parts GB2 of the dummy electrode DE2 overlap with continuous thin metal wires that are not the broken parts GB1 of the first dummy electrode DE1, but even if all the broken parts do not overlap with the continuous thin metal wires, the conductive member The visibility when 13 is used for the touch panel 11 can be improved. For example, the first dummy electrode DE1 and the second dummy electrode DE2 have at least one disconnection portion where one of the first dummy electrode DE1 and the second dummy electrode DE2 overlaps with a thin metal wire that is not the other disconnection portion. Can be placed. In this case, as compared with the conventional conductive member as shown in FIG. 13, the disconnection portion GB1 of the first dummy electrode DE1 and the disconnection portion GB2 of the second dummy electrode DE2 are less likely to overlap each other, so that they are conspicuous. The number of places to be visually recognized can be reduced, and the visibility when the conductive member 13 is used for the touch panel 11 can be improved. The point where one of the broken parts of the first dummy electrode DE1 and the second dummy electrode DE2 overlaps the thin metal wire that is not the other broken part is a line connecting both ends of the thin metal wire with a straight line in one of the broken parts. , The other is a point where continuous thin metal wires that are not broken parts intersect and overlap each other.

Further, from the viewpoint of visibility, in the fourth region R4, the number of points where one of the first dummy electrode DE1 and the second dummy electrode DE2 is overlapped with a thin metal wire other than the other is the number of points where one of the disconnection portions overlaps. It is preferably 50% or more, more preferably 90% or more, and most preferably 100% with respect to the number of the above.

Further, in the first embodiment of the present invention, the first mesh pattern MP1 formed on the first detection electrode SE1 and the first dummy electrode DE1, and the first mesh pattern MP1 formed on the second detection electrode SE2 and the second dummy electrode DE2. The two-mesh pattern MP2 is composed of a rhombic mesh, but these are not limited to the rhombic mesh. That is, the first mesh cell C1 included in the first detection electrode SE1 and the first dummy electrode DE1 and the second mesh cell C2 included in the second detection electrode SE2 and the second dummy electrode DE2 are formed into a regular hexagon other than a rhombus. It can be an equilateral triangle, a quadrangle such as a parallelogram, or another polygon. Further, each side of the mesh cell does not have to have a linear shape, and may have a wavy line shape. However, the shape of the third mesh cell C3 formed by combining the first mesh pattern MP1 and the second mesh pattern MP2 is preferably a quadrangle, and more preferably a rhombus from the viewpoint of reducing moire with the display device. When the shape of the third mesh cell C3 is a rhombus, the acute angle of the rhombus is preferably 20 to 70 degrees, and the length of one side of the rhombus is preferably 100 μm to 300 μm.

Further, the first detection electrode SE1, the first dummy electrode DE1, the second detection electrode SE2, and the second dummy electrode DE2 are composed of a diamond-shaped mesh having a standard regular pattern, but the present invention is not limited thereto. , May be composed of a mesh composed of irregular patterns. In this case, the plurality of mesh cells included in the first detection electrode SE1, the first dummy electrode DE1, the second detection electrode SE2, and the second dummy electrode DE2 are relative to the average value of the side lengths of the respective mesh cells. It can be a polygonal mesh cell having an irregular side length of -10% to + 10%, particularly a quadrangular or parallelogram mesh cell.

Further, in this case, the first mesh pitch P1 in the plurality of first detection electrodes SE1 and the plurality of first dummy electrodes DE1 is in the first direction between the centers of gravity of the first mesh cells C1 adjacent to each other in the first direction D1. It can be determined as the average value of the distance of D1. Further, the second mesh pitch P2 in the plurality of second detection electrodes SE2 and the plurality of second dummy electrodes DE2 is the distance between the centers of gravity of the second mesh cells C2 adjacent to each other in the second direction D2 in the second direction D2. It can be set as an average value.
With such a configuration, it is possible to suppress moire with a pixel pattern of a display device (not shown) on the touch panel 11, and further reduce color noise.

Further, when the plurality of first detection electrodes SE1, the plurality of first dummy electrodes DE1, the plurality of second detection electrodes SE2, and the plurality of second dummy electrodes DE2 are composed of a mesh having an irregular pattern, a plurality of them. When calculating the average value and mesh pitch of the side lengths of the mesh cells, the average value and mesh pitch of the side lengths are calculated for the mesh cells arranged in the area having the specified area. be able to. For example, the average value of the side lengths and the mesh pitch can be calculated for a plurality of mesh cells arranged in an area of 10 mm × 10 mm.

Further, a plurality of first mesh cells C1 included in the plurality of first detection electrodes SE1 and the plurality of first dummy electrodes DE1, a plurality of second detection electrodes SE2 included in the plurality of second detection electrodes SE2, and a plurality of seconds included in the plurality of second dummy electrodes DE2. The mesh cell C2 and the plurality of third mesh cells C3 included in the third mesh pattern MP3 formed by superimposing the first electrode layer 16A and the second electrode layer 16B each have a random shape. You can also.
Further, in order to improve the insulating properties of the first dummy electrode DE1 and the second dummy electrode DE2, a plurality of second mesh cells C1 constituting the first dummy electrode DE1 and a plurality of second dummy electrodes DE2 constituting the second dummy electrode DE2 are formed. It is preferable that each mesh cell C2 has two or more broken portions. In particular, each side of the plurality of first mesh cells C1 constituting the first dummy electrode DE1 of the portion T2 of FIG. 3 and the portion T4 of FIG. 4 corresponding to the fourth region R4 in FIG. 5, and the second dummy electrode DE2. It is more preferable to provide a disconnection portion on each side of the plurality of second mesh cells C2 constituting the above from the viewpoint of improving the insulating property.

Embodiment 2
The disconnection portion GB1 provided in the first mesh cell C1 of the first dummy electrode DE1 and the disconnection portion GB2 provided in the second mesh cell C2 of the second dummy electrode DE2 in the first embodiment are the first mesh cells, respectively. Although it is provided at the midpoint of the side of C1 and the midpoint of the side of the second mesh cell C2, the present invention is not limited to this aspect.

FIG. 6 shows a partial plan view of the first electrode layer according to the second embodiment as viewed from the visual side in a plan view. As shown in FIG. 6, a first dummy electrode DE3 composed of a thin metal wire MW1 is formed adjacent to the first detection electrode SE1. Here, in the first electrode layer according to the second embodiment, a plurality of first dummy electrodes DE3 are formed in place of the plurality of first dummy electrodes DE1 in the first electrode layer 16A according to the first embodiment shown in FIG. It is an electrode.
For the sake of explanation, in FIG. 6, the thin metal wire MW1 of the first detection electrode SE1 is drawn with a relatively thick solid line, and the thin metal wire MW1 of the first dummy electrode DE3 is drawn with a relatively thin solid line. However, the thin metal wire MW1 of the first detection electrode SE1 and the thin metal wire MW1 of the first dummy electrode DE3 can actually be the thin metal wire MW1 having the same line width.

Similar to the first dummy electrode DE1 of the first embodiment shown in FIG. 3, the first dummy electrode DE3 has a mesh shape composed of a thin metal wire MW1 and having a diamond-shaped first mesh cell C1 as a repeating unit. However, the gap GA1 is arranged with respect to the first detection electrode SE1 so as to be electrically insulated, and although not shown, a plurality of first electrode pads 21, a plurality of first peripheral wirings 22 and a plurality of first peripheral wirings 22 are provided. Since it is arranged so as to be electrically insulated from the first external connection terminal 23, it does not contribute to the detection of the touch operation.

Further, each of the plurality of first mesh cells C1 forming the mesh shape of the first dummy electrode DE3 has a broken portion GB3 in which the thin metal wire MW1 is discontinuous.
As shown in FIG. 6, in the portion T1 where the first dummy electrode DE3 and the second detection electrode SE2 overlap each other, the first mesh cell C1 has a disconnection portion GB3 on all sides. The disconnection portion GB3 is located at the midpoint of the side of the first mesh cell C1. Further, also in the portion T2 where the first dummy electrode DE3 and the second dummy electrode DE4 described later overlap each other, the first mesh cell C1 has a disconnection portion GB3 on all sides, but the disconnection portion GB3 is located at a position other than the midpoint of the side of the first mesh cell C1. That is, the arrangement of the plurality of disconnection portions GB3 formed on the first dummy electrode DE3 in the portion T1 where the first dummy electrode DE3 and the second detection electrode SE2 overlap each other, and the first dummy electrode DE3 and the second dummy electrode DE3 and the second. The arrangement of the plurality of disconnection portions GB3 formed on the first dummy electrode DE3 in the portion T2 where the dummy electrode DE4 and the dummy electrode DE4 overlap each other is different from each other.

Here, in the plurality of first dummy electrodes DE3, the length of the disconnection portion GB3 provided at a portion other than the midpoint of the side of the first mesh cell C1 is provided at the midpoint of the side of the first mesh cell C1. Similar to the length of the broken portion GB3, it is preferably 0.5 μm to 50 μm, more preferably 1 μm to 30 μm, and further preferably 5 μm to 20 μm. The length of the disconnection portion GB3 provided at the portion other than the midpoint of the side of the first mesh cell C1 in the portion T2 is the length of the disconnection portion GB3 provided at the midpoint of the side of the first mesh cell C1 in the portion T1. It is preferable to make it shorter than that from the viewpoint of visibility. Further, the length of the disconnection portion GB3 provided at the portion other than the midpoint of the side of the first mesh cell C1 in the portion T2 is the length of the disconnection portion GB3 provided at the midpoint of the side of the first mesh cell C1 in the portion T1. It is more preferably 2/3 or less of the length, and further preferably 1/2 or less.

As described above, the first detection electrode SE1 and the first dummy electrode DE3 in the second embodiment are both the first detection electrode SE1 and the first dummy electrode DE1 in the first embodiment shown in FIG. Since the mesh cell C1 is provided, the first mesh pattern MP1 is formed by the plurality of first detection electrodes SE1 and the plurality of first dummy electrodes DE3.

FIG. 7 shows a partial plan view of the second electrode layer according to the second embodiment as viewed from the visual side in a plan view. As shown in FIG. 7, a second dummy electrode DE4 composed of a thin metal wire MW2 is formed adjacent to the second detection electrode SE2. Here, in the second electrode layer according to the second embodiment, in the second electrode layer 16B according to the first embodiment shown in FIG. 2, a plurality of second dummy electrodes DE4 are formed instead of the plurality of second dummy electrodes DE2. It is an electrode.
For the sake of explanation, in FIG. 7, the thin metal wire MW2 of the second detection electrode SE2 is drawn with a relatively thick dotted line, and the thin metal wire MW2 of the second dummy electrode DE4 is drawn with a relatively thin dotted line. However, the thin metal wire MW2 of the second detection electrode SE2 and the thin metal wire MW2 of the second dummy electrode DE4 are actually composed of continuous thin metal wire MW2, and are made of thin metal wire MW2 having the same line width as each other. be able to.

Similar to the second dummy electrode DE2 of the first embodiment shown in FIG. 4, the second dummy electrode DE4 has a mesh shape composed of a thin metal wire MW2 and having a diamond-shaped second mesh cell C2 as a repeating unit. However, the gap GA2 is arranged so as to be electrically insulated from the second detection electrode SE2, and although not shown, a plurality of second electrode pads 31, a plurality of second peripheral wirings 32, and a plurality of second peripheral wirings 32 are provided. Since it is arranged so as to be electrically insulated from the second external connection terminal 33, it does not contribute to the detection of the touch operation.

Further, each of the plurality of second mesh cells C2 forming the mesh shape of the second dummy electrode DE4 has a GB4 in which the thin metal wire MW2 is discontinuous.
As shown in FIG. 7, in the portion T3 where the second dummy electrode DE4 and the first detection electrode SE1 overlap each other, the second mesh cell C2 has a disconnection portion GB4 on all sides. The disconnection portion GB4 is located at the midpoint of the side of the second mesh cell C2. Further, also in the portion T4 where the second dummy electrode DE4 and the first dummy electrode DE3 overlap each other, the second mesh cell C2 has a disconnection portion GB4 on all sides, but the disconnection portion GB4 has a disconnection portion GB4. , It is located at a position other than the midpoint of the side of the second mesh cell C2. That is, the arrangement of the plurality of disconnection portions GB4 formed on the second dummy electrode DE4 in the portion T3 where the second dummy electrode DE4 and the first detection electrode SE3 overlap each other, and the second dummy electrode DE4 and the first The arrangement of the plurality of disconnection portions GB4 formed on the second dummy electrode DE4 in the portion T4 where the dummy electrode DE3 and the dummy electrode DE3 overlap each other is different from each other.

Further, in the plurality of second dummy electrodes DE4, the length of the disconnection portion GB4 provided at the portion other than the midpoint of the side of the second mesh cell C2 is the disconnection provided at the midpoint of the side of the second mesh cell C2. Similar to the length of the portion GB4, it is preferably 0.5 μm to 50 μm, more preferably 1 μm to 30 μm, and further preferably 5 μm to 20 μm. The length of the disconnection portion GB4 provided at the portion other than the midpoint of the side of the second mesh cell C2 in the portion T4 is the length of the disconnection portion GB4 provided at the midpoint of the side of the second mesh cell C2 in the portion T3. It is preferable to make it shorter than that from the viewpoint of visibility. Further, the length of the disconnection portion GB4 provided at the portion other than the midpoint of the side of the second mesh cell C2 in the portion T4 is the length of the disconnection portion GB4 provided at the midpoint of the side of the second mesh cell C2 in the portion T3. It is preferably 2/3 or less of the length, and more preferably 1/2 or less.

As described above, the second detection electrode SE2 and the second dummy electrode DE4 in the second embodiment are both the second detection electrode SE2 and the second dummy electrode DE2 in the first embodiment shown in FIG. Since the mesh cell C2 is provided, the second mesh pattern MP2 is formed by the plurality of second detection electrodes SE2 and the plurality of second dummy electrodes DE4.

FIG. 8 shows a partial plan view of the conductive member of the second embodiment as viewed from the visual side in a plan view. In the embodiment shown in FIG. 8, the first mesh cell C1 and the second mesh cell C2 have the same rhombic shape. At this time, similarly to the touch panel 11 of the first embodiment shown in FIG. 5, a plurality of first detection electrodes SE1 and a plurality of first dummy electrodes DE3, a plurality of second detection electrodes SE2, and a plurality of second dummy electrodes DE4 And overlap each other to form a third mesh pattern MP3 composed of a plurality of third mesh cells C3. The third mesh cell C3 is also diamond-shaped.

As described above, also in the conductive member of the second embodiment, similarly to the conductive member 13 of the first embodiment shown in FIG. 5, a plurality of first detection electrodes SE1, a plurality of first dummy electrodes DE3, and a plurality of firsts. Since the two detection electrodes SE2 and the plurality of second dummy electrodes DE4 overlap each other to form the third mesh pattern MP3, the parasitic capacitance at the electrode intersection is reduced, and the thin metal wire MW1 and the thin metal wire MW1 contained in the first electrode layer are formed. It is possible to prevent the thin metal wire MW2 contained in the second electrode layer from being conspicuously visually recognized.

Further, as shown in FIG. 8, similarly to the first region R1 to the fourth region R4 in the first embodiment shown in FIG. 5, the first detection electrode SE1, the first dummy electrode DE3, the second detection electrode SE2, and the second detection electrode SE2 The two dummy electrodes DE4 can be divided into four types of regions, that is, a first region R1, a second region R2, a third region R3, and a fourth region R4, depending on the combination of the overlapping. Here, the first region R1 is a region where the first detection electrode SE1 and the second detection electrode SE2 overlap each other, and the second region R2 is a region where the first detection electrode SE1 and the second dummy electrode DE4 overlap each other. The third region R3 is a region where the first dummy electrode DE3 and the second detection electrode SE2 overlap each other, and the fourth region R4 is a region where the first dummy electrode DE3 and the second dummy electrode DE4 overlap each other. ..
The second region R2 is the portion T3 shown in FIG. 7, the third region R3 is the portion T1 shown in FIG. 6, and the fourth region R4 is the portion T2 shown in FIG. Corresponds to each of the portions T4 shown in 7.

When the conductive member of the second embodiment is viewed from the visual side, the thin metal wire MW1 constituting the first detection electrode SE1 and the thin metal wire MW2 constituting the second detection electrode SE2 intersect with each other in the first region R1. Overlapping.
Further, in the second region R2, the disconnection portion GB4 of the second dummy electrode DE4 is formed at the midpoint of the side of the second mesh cell C2, and is at a position where it intersects with the thin metal wire MW1 constituting the first detection electrode SE1. Is located in.
Further, in the third region R3, the disconnection portion GB3 of the first dummy electrode DE3 is formed at the midpoint of the side of the first mesh cell C1 and intersects with the thin metal wire MW2 constituting the second detection electrode SE2. Is located in.

Further, in the fourth region R4, the disconnection portion GB3 of the first dummy electrode DE3 and the disconnection portion GB4 of the second dummy electrode DE4 are the metal wire MW1 of the first dummy electrode DE3 and the metal wire of the second dummy electrode DE4, respectively. It is arranged at a position other than the position where the MW2 intersects. That is, the plurality of disconnection portions GB3 provided on the first dummy electrode DE3 and the plurality of disconnection portions GB4 provided on the second dummy electrode DE4 are arranged at different positions from each other and do not overlap. Therefore, the conductive member of the second embodiment does not have a conspicuously visible portion due to the disconnection portion GB3 of the first dummy electrode DE3 and the disconnection portion GB4 of the second dummy electrode DE4 overlapping each other. Thereby, when the conductive member of the second embodiment is used for the touch panel, the visibility can be improved.

In the fourth region R4 in the second embodiment, the plurality of disconnection portions GB3 of the first dummy electrode DE3 and the plurality of disconnection portions GB4 of the second dummy electrode DE4 are the midpoints of the sides of the first mesh cell C1 and the second. Since it is provided at a portion other than the midpoint of the side of the two-mesh cell C2, the metal thin wire MW1 of the first dummy electrode DE3 and the metal thin wire MW1 of the first dummy electrode DE3 are provided at all locations where the first mesh pattern MP1 and the second mesh pattern MP2 intersect with each other. The thin metal wire MW2 of the second dummy electrode DE4 intersects and overlaps with each other.

The present invention is not limited to such an embodiment, and for example, in the fourth region R4, at least among the plurality of disconnection portions GB3 of the first dummy electrode DE3 and the plurality of disconnection portions GB4 of the second dummy electrode DE4. One can be provided at a portion other than the midpoint of the sides of the first mesh cell C1 and the second mesh cell C2. As a result, there is at least one point where the continuous thin metal wire MW1 which is not the broken portion GB3 of the first dummy electrode DE3 and the continuous thin metal wire MW2 which is not the broken portion GB4 of the second dummy electrode DE4 intersect and overlap each other. Can be made to. In this case, as compared with the conventional conductive member as shown in FIG. 13, the disconnection portion GB3 of the first dummy electrode DE3 and the disconnection portion GB4 of the second dummy electrode DE4 are less likely to overlap each other, so that they are conspicuous. The number of places to be visually recognized can be reduced, and the visibility when the conductive member of the second embodiment is used for the touch panel can be improved.

Further, from the viewpoint of visibility, in the fourth region R4, the continuous thin metal wire MW1 which is not the broken portion GB3 of the first dummy electrode DE3 and the continuous thin metal wire MW2 which is not the broken portion GB4 of the second dummy electrode DE4 are formed. The number of points that intersect and overlap each other is preferably 50% or more, preferably 90% or more, of the number of intersections between the thin metal wire MW1 of the first dummy electrode DE3 and the thin metal wire MW2 of the second dummy electrode DE4. More preferably, 100% is most preferable.
Further, in order to improve the insulating properties of the first dummy electrode DE3 and the second dummy electrode DE4, the plurality of first mesh cells C1 constituting the first dummy electrode DE3 and the plurality of second dummy electrodes DE4 constituting the second dummy electrode DE4 are formed. It is preferable that each mesh cell C2 has two or more broken portions. In particular, disconnection portions may be provided on each side of the plurality of first mesh cells C1 constituting the first dummy electrode DE1 and on each side of the plurality of second mesh cells C2 constituting the second dummy electrode DE2. , More preferable from the viewpoint of improving the insulating property.

Of course, in the fourth region R4, the arrangement of the plurality of disconnection portions formed on the first dummy electrode is the arrangement of the plurality of disconnection portions GB1 formed on the first dummy electrode DE1 in the first embodiment, and the embodiment. The arrangement of the plurality of disconnection portions GB3 formed on the first dummy electrode DE3 in No. 2 may be mixed. That is, in the first dummy electrode of the fourth region R4, even if a disconnection portion is formed at a position other than the midpoint of a part of the side of the first mesh cell C1 and the midpoint of the side of the first mesh cell C1. good. Similarly, in the fourth region R4, the arrangement of the plurality of disconnection portions formed on the second dummy electrode is the same as the arrangement of the plurality of disconnection portions GB2 formed on the second dummy electrode DE2 in the first embodiment. The arrangement of the plurality of disconnection portions GB4 formed on the second dummy electrode DE4 in the second form may be mixed.

Further, although not described in the first and second embodiments, the thin metal wire MW1 in the first detection electrode SE1 and the thin metal wire MW2 in the second detection electrode SE2 are disconnected as necessary for resistance adjustment and the like. A part may be provided. At this time, of the first detection electrode SE1 and the second detection electrode SE2, the broken portion of the thin metal wire formed on one of the detection electrodes overlaps with the broken portion of the thin metal wire formed on the other detection electrode in a plan view. It is preferable to arrange them so that they do not become.

Further, in the first and second embodiments of the present invention, the first electrode layer 16A is formed on the first surface 15A of the transparent insulating substrate 15 which is a transparent insulating member, and the second electrode layer 16B is transparent. Although it is formed on the second surface 15B of the insulating substrate 15, it is not limited to this embodiment as long as the first electrode layer 16A and the second electrode layer 16B are insulated from each other.
FIG. 9 shows a partial cross-sectional view of the touch panel 41 according to the modified example of the first embodiment of the present invention. In the modified example shown in FIG. 9, the first electrode layer 16A is formed on the transparent insulating substrate 42 made of tempered glass, and the interlayer transparent insulating film layer 18 is formed so as to cover the first electrode layer 16A. Further, a second electrode layer 16B is formed on the interlayer transparent insulating film layer 18, and a protective layer 17B is formed so as to cover the second electrode layer 16B. In this case, the interlayer transparent insulating film layer 18 covering the first electrode layer 16A becomes a "transparent insulating member" interposed between the first electrode layer 16A and the second electrode layer 16B, and becomes the first electrode layer 16A. The second electrode layer 16B and the second electrode layer 16B are insulated from each other by the presence of the transparent insulating member. In the modified example shown in FIG. 9, the transparent insulating substrate 42 can be used as the cover panel 12 shown in FIG.

Further, FIG. 10 shows a partial cross-sectional view of the touch panel 43 according to another modification of the first embodiment of the present invention. In the modified example shown in FIG. 10, the first electrode layer 16A is formed on the first transparent insulating substrate 44A, and the protective layer 17A is formed so as to cover the first electrode layer 16A. Further, the second electrode layer 16B is formed on the second transparent insulating substrate 44B, and the protective layer 17B is formed so as to cover the second electrode layer 16B. Further, the protective layer 17A formed on the first transparent insulating substrate 44A and the second transparent insulating substrate 44B are adhered to each other via the transparent adhesive layer 45. In this case, the protective layer 17A, the adhesive layer 45, and the second transparent insulating substrate 44B covering the first electrode layer 16A are interposed between the first electrode layer 16A and the second electrode layer 16B. The first electrode layer 16A and the second electrode layer 16B are insulated from each other by the presence of the transparent insulating member. In the modified example shown in FIG. 10, the first transparent insulating substrate 44A can also be used as the cover panel 12 shown in FIG.
The conductive member of the present invention is not limited to the embodiment shown in FIGS. 9 and 10, as long as the first electrode layer 16A and the second electrode layer 16B are insulated from each other by the presence of the transparent insulating member. good.

Hereinafter, the conductive member 13 of the first embodiment and each member constituting the conductive member of the second embodiment will be described.
<Transparent insulation board>
The transparent insulating substrate 15 is transparent and has electrical insulating properties, and is not particularly limited as long as it can support the first electrode layer 16A and the second electrode layer 16B, but is a material constituting the transparent insulating substrate 15. For example, glass, tempered glass, non-alkali glass, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), cyclo-olefin polymer (COP), cyclic olefin polymer (COC). : Cyclic olefin copolymer), Polycarbonate (PC: polymer), Acrylic resin, Polyethylene (PE: polyethylene), Polypropylene (PP: polypropylene), Polystyrene (PS: polystylene), Polyvinyl chloride (PVC: polyvinylidene chloride), Polyvinylidene chloride (PVDC: polyvinylidene chloride), triacetyl cellulose (TAC: cellulose triacetate) and the like can be used. The thickness of the transparent insulating substrate 15 is, for example, 20 to 1000 μm, and particularly preferably 30 to 100 μm. The total light transmittance of the transparent insulating substrate 15 is preferably 40% to 100%. The total light transmittance is measured by using, for example, "Plastic--How to determine the total light transmittance and the total light reflectance" specified in JIS K 7375: 2008.

<Thin metal wire>
The thin metal wire forming the first detection electrode SE1 and the first dummy electrodes DE1 and DE3 and the thin metal wire forming the second detection electrode SE2 and the second dummy electrodes DE2 and DE4 are metal having a line width of 0.5 μm to 10 μm. It is preferably a thin line. A more preferable line width of these thin metal wires is 1.0 μm to 5.0 μm. Preferred materials for the fine metal wire include silver, copper, aluminum, gold, molybdenum, chromium and the like, and can be used in their alloys, oxides or laminates thereof. In particular, silver or copper is preferable from the viewpoint of resistance value, and for example, fine metal wires having a laminated structure such as molybdenum / aluminum / molybdenum, molybdenum / copper / molybdenum, and copper oxide / copper / copper oxide can be used.
The film thickness of the thin metal wire is preferably 0.05 μm to 10 μm, and more preferably 0.1 μm to 1 μm. For the purpose of improving the visibility of the thin metal wire, a blackening layer may be provided on the thin metal wire or between the thin metal wire, the transparent insulating member, and the thin metal wire. Copper oxide, molybdenum oxide, or the like can be used as the blackening layer.

<Protective layer>
As the transparent protective layers 17A and 17B covering the thin metal wire, an organic film such as gelatin, acrylic resin or urethane resin, or an inorganic film such as silicon dioxide can be used, and the film thickness is 0.01 μm or more and 10 μm or less. Is preferable.
Further, if necessary, a transparent coat layer may be formed on the protective layer. As the transparent coat layer, an organic film such as an acrylic resin or urethane resin is used, and the film thickness is preferably 1 μm or more and 100 μm or less.

Further, if necessary, the following layers can be additionally provided to the conductive member 13 of the first embodiment and the conductive member of the second embodiment.
<Peripheral wiring insulating film>
Peripheral wiring insulating films may be formed on the first peripheral wiring 22 and the second peripheral wiring 32 shown in FIG. 2 for the purpose of preventing short circuits between the peripheral wirings and corrosion of the peripheral wirings. As the peripheral wiring insulating film, an organic film such as an acrylic resin or urethane resin is used, and the film thickness is preferably 1 μm or more and 30 μm or less. The peripheral wiring insulating film may be formed on only one of the first peripheral wiring 22 and the second peripheral wiring 32.

1A 1st electrode layer, 1B 2nd electrode layer, 2A, 2B detection electrode, 3A, 3B dummy electrode, 4 mesh cell, 5A, 5B disconnection part, 6 metal thin wire, 11,41,43 touch panel, 11A front surface, 11B back surface , 12 cover panel, 13 conductive member, 14 adhesive layer, 15,42 transparent insulating substrate, 15A first surface, 15B second surface, 16A first electrode layer, 16B second electrode layer, 17A, 17B protective layer, 18 layers Transparent insulating layer, 22 1st peripheral wiring, 23 1st external connection terminal, 24 1st electrode pad, 32 2nd peripheral wiring, 33 2nd external connection terminal, 34 2nd electrode pad, 44A 1st transparent insulating substrate, 44B 2nd transparent insulating substrate, C1 1st mesh cell, C2 2nd mesh cell, C3 3rd mesh cell, D1 1st direction, D2 2nd direction, DE1, DE3 1st dummy electrode, DE2, DE4 2nd dummy Electrode, GA1, GA2 gap, GB1, GB2, GB3, GB4 disconnection part, MP1 1st mesh pattern, MP2 2nd mesh pattern, MP3 3rd mesh pattern, MW1, MW2 fine metal wire, P1 1st mesh pitch, P2 2nd Mesh pitch, P3 3rd mesh pitch, R0 region, R1 1st region, R2 2nd region, R3 3rd region, R4 4th region, S1 input region, S2 outer region, SE1 1st detection electrode, SE2 2nd detection Electrodes, T1, T2, T3, T4 parts.

Claims (10)

A conductive member in which the first electrode layer and the second electrode layer are arranged via a transparent insulating member.
The first electrode layers are arranged in parallel at intervals in the first direction, and a plurality of first detection electrodes extending in a second direction orthogonal to the first direction, and the plurality of first detection electrodes. It has a plurality of first dummy electrodes arranged between the above and insulated from the plurality of first detection electrodes.
The second electrode layer is arranged in parallel at intervals in the second direction and is arranged between the plurality of second detection electrodes extending in each of the first directions and the plurality of second detection electrodes. It has a plurality of second dummy electrodes insulated from the plurality of second detection electrodes, and has a plurality of second dummy electrodes.
The first detection electrode, the first dummy electrode, the second detection electrode, and the second dummy electrode are each composed of a plurality of mesh cells formed of fine metal wires.
The mesh cell constituting the first dummy electrode has a broken portion in which the thin metal wire is discontinuous.
The mesh cell constituting the second dummy electrode has a broken portion in which the thin metal wire is discontinuous.
The arrangement of the disconnection portion of the mesh cell of the first dummy electrode in the region where the first dummy electrode and the second detection electrode overlap is the above in the region where the first dummy electrode and the second dummy electrode overlap. Unlike the arrangement of the disconnection portion of the mesh cell of the first dummy electrode,
The arrangement of the disconnection portion of the mesh cell of the second dummy electrode in the region where the second dummy electrode and the first detection electrode overlap is the above in the region where the first dummy electrode and the second dummy electrode overlap. Unlike the arrangement of the disconnection portion of the mesh cell of the second dummy electrode,
In plan view
In the region where the first dummy electrode and the second detection electrode overlap each other, the thin metal wire of the second detection electrode is arranged in the disconnection portion of the first dummy electrode.
In the region where the second dummy electrode and the first detection electrode overlap each other, the thin metal wire of the first detection electrode is arranged in the disconnection portion of the second dummy electrode.
In the region where the first dummy electrode and the second dummy electrode overlap each other, the continuous metal wire which is not the broken portion of the first dummy electrode and the continuous metal which is not the broken portion of the second dummy electrode. The first dummy electrode and the second dummy electrode are formed so that there is at least one point where the thin wires intersect and overlap each other .
A conductive member in which a disconnection portion is formed on each side of the mesh cell of the first dummy electrode and each side of the mesh cell of the second dummy electrode. In the region where the first dummy electrode and the second dummy electrode overlap, the broken portion of the first dummy electrode and the broken portion of the second dummy electrode are respectively the same as the thin metal wire of the first dummy electrode. The conductive member according to claim 1, wherein the conductive member is arranged at a position other than the position where the thin metal wire of the second dummy electrode intersects with each other. The length of the broken portion of the first dummy electrode and the length of the broken portion of the second dummy electrode in the region where the first dummy electrode and the second dummy electrode overlap are the first dummy electrode and the above. From the length of the broken portion of the first dummy electrode in the region where the second detection electrode overlaps and the length of the broken portion of the second dummy electrode in the region where the second dummy electrode and the first detection electrode overlap. The conductive member according to the short claim 2. The line width of the thin metal wire is 0.5 μm or more and 10 μm or less.
The conductive member according to any one of claims 1 to 3 , wherein the length of the broken portion of the first dummy electrode and the length of the broken portion of the second dummy electrode are 1 μm or more and 30 μm or less. The plurality of first detection electrodes and the plurality of first dummy electrodes form a first mesh pattern composed of a plurality of first mesh cells.
The plurality of second detection electrodes and the plurality of second dummy electrodes form a second mesh pattern composed of a plurality of second mesh cells.
By overlapping the first electrode layer and the second electrode layer with each other, the plurality of first detection electrodes, the plurality of first dummy electrodes, the plurality of second detection electrodes, and the plurality of second dummy electrodes are formed. The conductive member according to any one of claims 1 to 4 , wherein a third mesh pattern composed of a plurality of third mesh cells is formed by combining with each other. The conductive member according to claim 5 , wherein each of the third mesh cells has a quadrangular shape. The conductive member according to claim 6 , wherein the quadrangle is a rhombus. The first mesh cell and the second mesh cell have the same shape as each other.
The first mesh pattern has a first mesh pitch and
The second mesh pattern has the same second mesh pitch as the first mesh pitch, and has the same second mesh pitch.
The conductive member according to any one of claims 5 to 7 , wherein the third mesh cell has a third mesh pitch which is 1/2 of the first mesh pitch. A touch panel using the conductive member according to any one of claims 1 to 8. A conductive member in which the first electrode layer and the second electrode layer are arranged via a transparent insulating member.
The first electrode layers are arranged in parallel at intervals in the first direction, and a plurality of first detection electrodes extending in a second direction orthogonal to the first direction, and the plurality of first detection electrodes. It has a plurality of first dummy electrodes arranged between the above and insulated from the plurality of first detection electrodes.
The second electrode layer is arranged in parallel at intervals in the second direction and is arranged between the plurality of second detection electrodes extending in each of the first directions and the plurality of second detection electrodes. It has a plurality of second dummy electrodes insulated from the plurality of second detection electrodes, and has a plurality of second dummy electrodes.
The first detection electrode, the first dummy electrode, the second detection electrode, and the second dummy electrode are each composed of a plurality of mesh cells formed of fine metal wires.
The mesh cell constituting the first dummy electrode has a broken portion in which the thin metal wire is discontinuous.
The mesh cell constituting the second dummy electrode has a broken portion in which the thin metal wire is discontinuous.
The arrangement of the disconnection portion of the mesh cell of the first dummy electrode in the region where the first dummy electrode and the second detection electrode overlap is the above in the region where the first dummy electrode and the second dummy electrode overlap. Unlike the arrangement of the disconnection portion of the mesh cell of the first dummy electrode,
The arrangement of the disconnection portion of the mesh cell of the second dummy electrode in the region where the second dummy electrode and the first detection electrode overlap is the above in the region where the first dummy electrode and the second dummy electrode overlap. Unlike the arrangement of the breaking portion of the mesh cell of the second dummy electrode,
In plan view
In the region where the first dummy electrode and the second dummy electrode overlap each other, the continuous metal wire which is not the broken portion of the first dummy electrode and the continuous metal which is not the broken portion of the second dummy electrode. The first dummy electrode and the second dummy electrode are formed so that there is at least one point where the thin wires intersect and overlap each other.
Wherein each side of the mesh cells are respectively disconnected portion is formed Rushirubeden member of each side and the second dummy electrodes of said mesh cells of said first dummy electrode.

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